diff options
Diffstat (limited to 'meta-zephyr-core/classes/zephyr-flash-bossac.bbclass')
-rw-r--r-- | meta-zephyr-core/classes/zephyr-flash-bossac.bbclass | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/meta-zephyr-core/classes/zephyr-flash-bossac.bbclass b/meta-zephyr-core/classes/zephyr-flash-bossac.bbclass new file mode 100644 index 0000000..50222d5 --- /dev/null +++ b/meta-zephyr-core/classes/zephyr-flash-bossac.bbclass @@ -0,0 +1,50 @@ +#@DESCRIPTION: class file to flash boards like Arduino Nano BLE which depends on bossac for flashing + +python do_flash_usb() { + import shutil + import subprocess + import serial.tools.list_ports + + # Note: make sure the installed bossac is set to PATH before running flash_usb() + # Check if bossac is avaiable for flashing + origbbenv = d.getVar("BB_ORIGENV", False) + bossac_path = shutil.which("bossac", path=origbbenv.getVar('PATH')) + + if not bossac_path: + bb.fatal("ERROR: bossac not found, please install first and add to PATH") + + board = d.getVar('BOARD') + + if board == 'arduino_nano_33_ble': + # find the serial port to which board is connected to + for port in serial.tools.list_ports.comports(): + if 'Arduino Nano 33 BLE' in port.description: + serial_port = port.device + break + else: + bb.fatal("ERROR: board not connected for flashing. Connect via USB and enable permission to connected port") + + image = "%s/%s.bin" % (d.getVar('DEPLOY_DIR_IMAGE'), d.getVar('PN')) + + command = [bossac_path, '-p', serial_port , '-R', '-e', '-w', '-v', '-b', image] + else: + bb.fatal("ERROR: Unsupported board %s" % board) + + bb.note("command: %s" % command) + bb.plain("Attempting to flash board: %s" % board) + + # Random failure are a possibility here, retry till there is a success for finite times + for _ in range(10, 0, -1): + try: + subprocess.check_call(command) + bb.plain("Bossac Flashing board: %s Success " % board) + break + except subprocess.CalledProcessError as e: + bb.warn("Failed to flash %s (error code: %s). Retrying after 1 second..." % (board, e.returncode)) + time.sleep(1) +} + +addtask do_flash_usb after do_deploy + +do_flash_usb[nostamp] = "1" +do_flash_usb[vardepsexclude] = "BB_ORIGENV" |